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什么叫伺服电机?伺服电机长什么样子?“伺服”一词是来源于希腊语“奴隶”的意思, 那么伺服电机也可以理解为服从控制信号指挥电机,所以伺服电机是指在伺服系统中被控制的电机。 如果单指一个电机的话,那只能算一个被控的机械元件,但是加上闭环控制系统就可以称之为伺服系统中的电机。
伺服电机分为直流和交流伺服电动机两大类,其主要特点是,当信号电压为零时无自转现象,转速随着转矩的增加而匀速下降。
直流伺服电机特性
机械特性 在输入的电枢电压保持不变时,电机的转速随电磁转矩变化而变化的规律
调节特性 直流电机在的电磁转矩(或负载转矩)下电机的稳态转速随电枢的控制电压变化而变化
动态特性 从原来的稳定状态到新的稳定状态,存在一个过渡过程,这就是直流电机的动态特性
交流伺服电机特性
无电刷和换向器,因此工作可靠,对维护和保养要求低
定子绕组散热比较方便
惯量小,易于提高系统的快速性
适应于高速大力矩工作状态
Honeywell 51196694-904 Keyboard IKB 51196694904 NEW
HONEYWELL 4DP7APXOD-411 Control Card 4DP7APXOD411
HONEYWELL 30731823-001 A/D MUX 30731823001
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HONEYWELL 51304812-100 EPLC I/O Adapter 51304812100 NEW
HONEYWELL Regulator Card 30731808-001, 30731808001
HONEYWELL Regulator Card 30731808-001, 30731808001
HONEYWELL 51107403-100 I/O LCN 51107403100
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NCC National Controls DNC-T2020-A10 Program Control
NCC National Controls DNC-T2020-B10 Program Control
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Parts Feeder Inc. Vibrator 10" x 4" Bowl
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HONEYWELL 51201394-100 UCN TAP KIT 2 DROP
New Goulds Pump Impeller 6 Vane 56849
Speed Selector Inc. 414-400 Speed Drive
SPRAYMATION Gun Driver Module 305910
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HONEYWELL 51304540-100 Paddle Board 51304540100
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BOSCH VALVE NEW 0811-404-937 PROP DIR. VALVE NG16
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VICKERS MHT MOTOR NEW NEVER USED
OILGEAR HYDRAULIC PUMP PVG100D4UVRDFYF-100NN-AN/20 NEW
RACINE/BOSCH PVF-PNTF-20ER HYDRAULIC PUMP REMAN
VICKERS VANE PUMP MODEL# 50V85ARHB401A20282
RACINE REMAN HYDRAULIC PUMP MODEL#PSV-PSSF-20HRM-56
RACINE REMAN HYDRAULIC PUMP MODEL#PSV-PSSF-25ERM-56
RACINE/BOSCH HYDRAULIC PUMP MODEL#PSV-PSCF-20HRM-66
RACINE/BOSCH HYDRAULIC PUMP MODEL#PSV-PSCF-25ERM-66
OILGEAR PISTON PUMP PVG100D4UVRDFYF-100NN-NN NEW
REXROTH AA20VG45DGM2/10R-NTC66K043E-ES NEW SURPLUS PUMP
SAUER SUNDSTRAND HYDRO TRANSMISSION #23-2058-CW REMAN
RADIAL PISTON PUMP # H20H-F2 AND H20L-F2
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VICKERS VANE PUMP REMAN VVB032F-PW-20CBW12/V101S5S11A20
SAUER SUNDSTRAND 90M100 HYDRAULIC PISTON MOTOR
RACINE HYDRAULIC PUMP MODEL#PSV-PSAF-15ERM-56 REMAN/NEW
RACINE HYDRAULIC PUMP MODEL#PSV-PSAF-10HRM-56 REMAN/NEW
RACINE HYDRAULIC PUMP MODEL#PSV-PSSF-10HRM-56 REMAN/NEW
RACINE HYDRAULIC PUMP MODEL#PSV-PSSF-15ERM-56 REMAN/NEW
CONTINENTAL PUMP NEW #PVR1530B10RFO521D
RACINE PSQ-PSSF-09ERM-20 HYDRAULIC VANE PUMP NEW
CONTINENTAL VALVE VS100M-3A-G3B5HL2-60L-G D10 - 1 1/4
NORTHMAN VALVE SW-G10-C4-A120-10 NEW SURPLUS D10 -1 1/4
CONTINENTAL PUMP NEW #PVR68B06RFO12H
BOSCH 0811-403-114 NG6 PROPORTIONAL FLOW CONTROL
REBUILT RACINE VANE PUMP # PVS-PSSO-12ER-01
NACHI FLOW CONTROL # FG10-373-20 NEW NEVER USED
CONTINENTAL VANE PUMP MODEL# PVR1520B15RMP13JY5518-1
VICKERS HYDRAULIC VANE PUMP REBUILT #45V42A1C22R
CONTINENTAL MANIFOLD MOUNTED VANE PUMP
OIL GEAR PISTON PUMP NEW SURPLUS W/1 YEAR WARRANTY
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BOSCH VALVE NG6 PROPORTIONAL RELIEF MODEL#0811-402-030
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VICKERS PUMP REMAN MODEL# V104-G-10 W/1 YEAR WARRANTY
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PVR1-6B10-RMP6H2 NEW CONTINENTAL PUMP
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HEYPAC HYDRAULIC DOUBLE ACTING PUMP #GX40-NSNW1 REMAN
RELIANCE ELECTRIC MOTOR NEW ID#P56H1332H